Here's an image from my front yard. I shot directly into the light with the Nikon 105 2.8 and extension tubes. Taken on a tripod with a Really Right Stuff macro rail. The macro rail lets me fine tune the focus without having to move the tripod which makes close-up/macro photography much easier. You can even stack two macro rails to fine tune the left and right axis in addition to the fore and aft... Cool stuff but much harder with moving subjects like mayflies.